PSET/PRESET

Function

PSET and PRESET are used to set or reset an individual pixel at the specified coordinates.

Syntax

PSET (X1,Y1),(X2,Y2),(X3,Y3),...

PRESET (X1,Y1),(X2,Y2),...

Any number of points may be specified in one statement.

(x,y) are the coordinates of the pixel to be set or reset and must lie in the range 0<x<239 and 0<y<63. The coordinate (0,0) refers to the top left corner of the screen.

Examples

PSET(0,0),(239, 0),(0,63),(239,63)

Will set the four corner pixels black.

Remarks

PSET and PRESET are graphic statements and will default the screen to graphic mode. If when a PSET/PRESET statement is encountered the screen is in text mode, it will automatically change to graphic mode.